Jan Timmers, Round two-piece bronze mold for deep plate with initials IT and year 1755, cast molding tool tools base metal bronze, cast turned Two-piece bronze mold for casting deep board with profile edge. signed I T and year 1755 (Jan Timmers) Rotterdam tin tinker tin tin Meeuws Druy artisan Shapes are from the originally 18th century Rotterdam tinnegieter J Druy. The large molds that were not signed or dated were the property of the tinker guild and were rented to the small tin caster.